261609129

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{853}}^1$

素因数の和:1206

約数の個数: 32

約数和(自身を含む): 399808640

約数和(自身を除く): 138199511

約数列:

[1, 3, 9, 27, 37, 111, 307, 333, 853, 921, 999, 2559, 2763, 7677, 8289, 11359, 23031, 31561, 34077, 94683, 102231, 261871, 284049, 306693, 785613, 852147, 2356839, 7070517, 9689227, 29067681, 87203043, 261609129]

約数ペア:

[(1, 261609129), (3, 87203043), (9, 29067681), (27, 9689227), (37, 7070517), (111, 2356839), (307, 852147), (333, 785613), (853, 306693), (921, 284049), (999, 261871), (2559, 102231), (2763, 94683), (7677, 34077), (8289, 31561), (11359, 23031)]